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Key Features
- Broadband pattern
generator with 16-ary output signals
- Pattern generation
from 10 up to 1250 MHz
- Freely programmable
32 MBit pattern memory
- Two independent
output channels
- Latest technology
using SiGe and InPh integrated circuits
- Easy-to-use graphical
user interface on PC (via USB-port)
Brief Description
The multilevel pattern generator PAT1250-16
is a special generator for testing digital designs and components,
e. g. laser diodes. The output signals use a multilevel signal code,
i. e. they can adopt not only one of two (binary), but one out of
sixteen possible voltage values. Every code element therefore is
encoded using four bit.
Definition of a Digit A single code
element or data character is referred to in the following as digit.
A digit is encoded using four bit and can adopt 16 different voltage
values. All steps between adjoining voltage values are equal.
For the operation of the generator an
external reference clock signal in the range of 20MHz to 2,5GHz is
required. Repetition rates with frequencies between 10MHz and
1,25GHz are possible.
The freely programmable internal 32 MBit
pattern memory allows the generation of arbitrary patterns of up to
4.194.304 data characters.
All signal outputs and inputs are accessible
at the front panel. These are: reference clock input, two
independent output signals (Multilevel A and Multilevel B), data
clock output, quadrature clock signal ( 90° phase difference)
and trigger output.
Output signals of the PAT 1250-16
Output signal A with statistical data distribution and data
clock trigger:
Output signals Multilevel A and B wordframe triggered:
Technical Specifications
| PAT 1250-16 |
| Data rate |
10 ... 1250 MHz |
| Clock input |
20 ... 2.500 MHz
(Reference clock input equals twice the data rate)
Ui = 0,5 ... 1 Vpp, Ri = 50
Ω,
50Ω SMA, |r| < 0,2
6-digit frequency indicator (on the GUI)
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| Data output |
2 output channels with 16 amplitude levels each
independently programmable, DC-coupled,
amplitude ca. 1,2 Vpp, 50 Ω SMA
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| Pattern |
Freely programmable pattern
Word length variable: 8 * m digits (m = 3 ... 219)
(= 24 ... 4.194.304 digits),
programmable via USB-port,
reversible polarity |
| Memory |
32 MBit (= 4.194.304 digits per channel) |
| Clock output |
- Data clock, 0,6 Vpp +/- 0,2 Vpp,
DC-free, SMA
- Data clock-90°, equals 1. with a phase difference
of 90°
(The data clock signal is derived from the reference clock signal
using a frequency divider) |
| Interface |
USB-port with a data rate of ca. 1 MByte/s |
| Measurements |
19" table housing, weight ca. 5 kg
widht x height x depth = 462 x 90 x 315 mm
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| Power supply |
230V/50-60Hz/32VA |
The instrument is produced by SYMPULS in
Germany.
We offer a reliable service and 24 month warranty.
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